<template>
  <!-- 面包屑导航区域 -->
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUsersList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUsersList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!-- {{scope.row}} -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200">
          <template slot-scope="scope">
            <!-- {{ scope.row.id }} -->
            <!-- 修改按钮 -->
            <el-button
              size="mini"
              type="primary"
              icon="el-icon-edit"
              @click="getUserById(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              size="mini"
              type="danger"
              icon="el-icon-delete"
              @click="delUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              :enterable="false"
              effect="dark"
              content="分配角色"
              placement="top"
            >
              <el-button
                size="mini"
                type="warning"
                icon="el-icon-setting"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogColsed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRules"
        label-width="80px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogColsed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="editForm"
        :rules="addFormRules"
        ref="editFormRef"
        label-width="80px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 定义邮箱的校验规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-]+)+$/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    }
    // 定义手机号的校验规则
    var checkMobile = (rule, value, callback) => {
      const regmobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regmobile.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    }

    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名的长度在6~15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },

      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {}
    }
  },
  created() {
    // 调用获取用户列表的方法
    this.getUsersList()
  },
  methods: {
    // 获取用户列表
    async getUsersList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$http.message('用户列表获取失败')
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    // 监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize

      // 重新加载数据
      this.getUsersList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage

      // 重新加载数据
      this.getUsersList()
    },
    // 监听 switch 开关状态的改变
    async userStateChange(userinfo) {
      console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },

    // 监听添加用户对话框的关闭事件
    addDialogColsed() {
      this.$refs.addFormRules.resetFields()
    },
    // 添加用户
    addUser() {
      console.log(this)
      // 1.预验证
      this.$refs.addFormRules.validate(async boo => {
        if (!boo) {
          return this.$message.error('请填写完整信息')
        }
        // 2.发送请求
        const { data: res } = await this.$http.post('users', this.addForm)
        console.log(res)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')

        // 3.重新渲染页面
        this.getUsersList()
        // 4.关闭对话框
        this.addDialogVisible = false
      })
    },

    // 重置修改用户信息表单
    editDialogColsed() {
      this.$refs.editFormRef.resetFields()
    },
    // 打开编辑用户的对话框
    async getUserById(id) {
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改用户信息并提交
    editUser() {
      // 1.预验证
      this.$refs.editFormRef.validate(async boo => {
        if (!boo) {
          return this.$message.error('请填写完整信息')
        }
        // 2.发起修改用户信息请求
        const { data: res } = await this.$http.put(
          `users/${this.editForm.id}`,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )
        console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        this.$message.success('更新用户信息成功')

        // 3.重新渲染页面
        this.getUsersList()
        // 4.关闭对话框
        this.editDialogVisible = false
      })
    },

    // 根据id删除对应的用户信息
    async delUserById(id) {
      console.log(id)
      // 弹框询问用户是否删除数据
      const res = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      // 如果用户确认删除,则返回值为字符串  confirm
      // 如果用户取消删除,则返回值为字符串  cancel
      console.log(res)

      if (res !== 'confirm') {
        return this.$message.info('已取消删除')
      }

      const { data: result } = await this.$http.delete(`users/${id}`)
      if (result.meta.status !== 200) {
        return this.$message.error('删除用户信息失败')
      }
      this.$message.success('删除用户信息成功')

      // 3.重新渲染页面
      this.getUsersList()
    }
  }
}
</script>

<style></style>
